Fig. 3

CGF used as root canal filling material in regenerative endodontic treatment. a An immature tooth with necrotic pulp. b Removal of decay lesion and necrotic pulp tissue. c CGF packed into the canals to the level of the cementoenamel junction and covered with and restored with composite resin. d After 12 months, pulp-like tissue formatted, root apex closure, and the thickness of the dentin increased